ASR-1001x rebooted unexpectedly ,but no crash file

[daldauod]

I have ASR-1001x router that rebooted unexpectedly, but there is no generated crash file

is the problem related to hardware or software.

[Leo Laohoo]

Post the complete output to the following commands:
1. sh version; and
2. dir

[Leo Laohoo]

Ok, now post the complete output to the command "sh log on uptime".